spt-items-api/app/Http/Controllers/ItemController.php

<?php

namespace App\Http\Controllers;

use App\Data\ItemsCollection;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class ItemController extends Controller
{
    /**
     * @var ItemsCollection
     */
    private ItemsCollection $itemsCollection;

    public function __construct(ItemsCollection $itemsCollection)
    {
        $this->itemsCollection = $itemsCollection;
    }

    /**
     * @param Request $request
     * @return JsonResponse
     */
    public function search(Request $request): JsonResponse
    {
        return response()->json([
            'item' => $this->itemsCollection->findItem($request->input('query')),
        ]);
    }

    /**
     * @param string $id
     * @return JsonResponse
     */
    public function getItem(string $id): JsonResponse
    {
        return response()->json([
            'item' => $this->itemsCollection->getItemById($id),
        ]);
    }
}